Recently, requests got a bit more picky about what types of data it will
accept as header values [1]. The reasons for this are generally sound;
str()ing arbitrary objects just before pushing them out a socket may not
do what the developer wanted/expected.
However, there are a few standard types that developers may be sending
that we should convert for them as a convenience. Now, we'll convert all
int, float, and bool values to strings before sending them on to
requests.
Change-Id: I6c2f451009cb03cb78812f54e4ed8566076de821
Closes-Bug: 1614932
ab60e08e2e